47th General Assembly and 44th World Congress of the International Union of Pure and Applied Chemistry (IUPAC)

2013 ◽  
Vol 23 (5) ◽  
pp. 297
2018 ◽  
Vol 4 (1) ◽  
pp. 144-148
Author(s):  
Pamela Armstrong

Vincent Ard and Lucile Pillot eds, Giants in the Landscape: Monumentality and Territories in the European Neolithic. Proceedings of the XV11 International Union of the Prehistoric and Protohistoric Sciences World Congress. Edited by Volume 3 / Session A25d. Oxford, UK: Archaeopress (2016). Paperback, English, vi+94 pages; illustrated throughout in black and white. ISBN: 9781784912857. £26.00. Also available to download from Archaeopress Open Access.


The term “element” is typically used in two distinct senses. First it is taken to mean isolated simple substances such as the green gas chlorine or the yellow solid sulphur. In some languages, including English, it is also used to denote an underlying abstract concept that subsumes simple substances but possesses no properties as such. The allotropes and isotopes of carbon, for example, all represent elements in the sense of simple substances. However, the unique position for the element carbon in the periodic table refers to the abstract sense of “element.” The dual definition of elements proposed by the International Union for Pure and Applied Chemistry contrasts an abstract meaning and an operational one. Nevertheless, the philosophical aspects of this notion are not fully captured by the IUPAC definition, despite the fact that they were crucial for the construction of the periodic table. This pivotal chemical notion remains ambiguous and such ambiguity raises problems at the epistemic, logical, and educational levels. These aspects are discussed throughout the book, from different perspectives. This collective book provides an overview of the current state of the debate on the notion of chemical element. Its authors are historians of chemistry, philosophers of chemistry, and chemists with epistemological and educational concerns.


2019 ◽  
Vol 34 (10) ◽  
pp. 650-668 ◽  
Author(s):  
David Kachlik ◽  
Vaclav Pechacek ◽  
Gabriela Hnatkova ◽  
Lukas Hnatek ◽  
Vladimir Musil ◽  
...  

Latin anatomical terminology of venous perforators (communications between superficial and deep venous systems of the lower limb) was adopted as late as 2001 as an appendix to the official nomenclature following the clinicians’ request. Terminologia Anatomica, last version of the Latin anatomical nomenclature, published in 1998, unfortunately contains no terms concerning these veins. During the 14th World Congress of the International Union of Phlebology, a consensus document was laid to expand the nomenclature of the lower limb veins, above all 36 new terms for perforators of the lower limb, both in Latin and English languages. This consensus document will be incorporated in the next version of the Terminologia Anatomica. But there are more constant and well-described ones, especially in the foot, and this article reviews in particular the current knowledge on the anatomy of the venous perforators of the whole lower limb.


Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 86
Author(s):  
Jesús-María García-Martínez ◽  
Emilia P. Collar

According to the IUPAC (International Union of Pure and Applied Chemistry), a hybrid material is that composed of an intimate mixture of inorganic components, organic components, or both types of components which usually interpenetrate on scales of less than 1 μm [...]


2018 ◽  
Vol 40 (4) ◽  
pp. 27-27
Author(s):  
Daniel Rabinovich

Abstract In a press release dated 30 December 2015, the International Union of Pure and Applied Chemistry (IUPAC) announced that a thorough review by independent experts of the experimental data available for the syntheses of elements 113, 115, 117, and 118 has been concluded, and that the discovery of the four elements completing the 7th row of the periodic table was confirmed. The elemental names and symbols proposed shortly thereafter by the corresponding discovery teams met the criteria prescribed by IUPAC for naming new elements, and nihonium (Nh), moscovium (Mc), tennessine (Ts), and oganesson (Og), became permanent within a few months. As such, the ending of the name of element 118 and its location in the periodic table, below radon in group 18, are consistent with the assumption that oganesson could be regarded as a noble gas.


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